Fuel Cost Calculator
Accurate Trip Cost Estimates — Directly on Your Site
Help your visitors plan smarter and travel farther with an easy-to-use fuel cost calculator. Designed for simplicity, performance, and seamless WordPress integration.
A Practical Plugin for Real-World Use
The Fuel Cost Calculator turns a common search — “How much will this trip cost?” — into a value-adding experience right on your website.
Whether you manage a travel blog, real estate site, or home-service business, the plugin helps your audience calculate expenses without leaving your page.
It’s designed with a clean interface, responsive layout, and developer-friendly architecture — so you can drop it into your site in minutes.
Performance First
Fast load times, optimized assets, and minimal overhead.
Built for Developers
Clean structure, clear hooks, and extensible by design.
UX Driven
Focused on clarity, not clutter.
Secure & Scalable
Built on WordPress best practices with premium-ready licensing options.
Fuel Cost Calculator
Accurate trip cost estimates, directly on your site.
The Fuel Cost Calculator plugin lets your visitors estimate trip costs in seconds. It’s a powerful yet lightweight solution for real estate agents, travel sites, and home service businesses — anyone who wants to offer practical value right on their website.
With free and premium functionality, the plugin is designed for simple implementation and ease of use. Use the shortcode anywhere on your site or drop it in with the included Gutenberg block.
Fuel Cost Calculator
Key Features
Free Version (Core Features):
- 🧾 Manual Input Mode — Enter distance, MPG, and current gas price.
- ⚡ Lightweight & Fast — Zero external dependencies, minimal load time.
- 🧩 Shortcode + Gutenberg Block — Use it anywhere on your site.
- 🎨 Customizable Labels — Easily adapt text and units for your audience.
- 💬 Instant Calculations — Real-time updates without page reloads.
Premium Features (v1.1+):
- 🗺️ Live Route Distance Calculation — Integrate OpenRouteService or Google Maps API for automatic distance lookup.
- 🚗 Vehicle Profiles — Preload MPG values by car model (via FuelEconomy.gov API).
- 🔐 License Key System — Manage premium access with built-in validation.
- 💾 Data Caching — Faster repeat calculations and reduced API calls.
- 🧱 Developer-Friendly Hooks — Extend or customize outputs programmatically.
Who it's for
- 🏠 Real Estate Agents — Help clients calculate commuting costs.
- 🚚 Moving & Transport Services — Offer instant trip estimates.
- ✈️ Travel & Tourism Sites — Show total road trip costs before booking.
- ⚙️ Developers & Agencies — Add value to client sites with minimal setup.
How it Works
1. Install and activate the plugin.
2. Add the shortcode [ fuel_cost_calculator ] to any page, or use the Gutenberg block.
3. Visitors input trip details or select a route (premium).
4. The plugin calculates estimated total cost instantly.
5. To use premium features, you will also need an ORS API Key and FRED API Key (see Installation and Setup)
Example Output:
“Your 275-mile trip at 25 MPG and $3.40/gallon will cost $37.40.”
Free vs Premium
| Feature | Free Version | Premium Version |
|---|---|---|
| Manual Input Calculator | ✅ | ✅ |
| Live Route Calculation (ORS) | ❌ | ✅ |
| Vehicle MPG Profiles | ❌ | ✅ |
| License Key System | ❌ | ✅ |
| Data Caching | ❌ | ✅ |
| Email Support | ✅ | ✅ |
| Priority Updates | ❌ | ✅ |
Installation & Setup
-
Download the plugin
.zipfile or install directly via the WordPress Plugin Installer. -
Activate it from your dashboard under Plugins → Installed Plugins.
-
Add the shortcode
[ fuel_cost_calculator ]to any post or page. -
For Premium users, enter your API and license keys under:
Settings → Fuel Cost Calculator → Premium Settings
Optional Settings (v1.1.0):
- Obtain an API Key from Open Route Services (ORS )
- Obtain an API Key from FRED
- Enter API Keys into the Fuel Cost Calculator Settings
Changelog
v1.1.0 — Current Version
- Added Premium license key validation
- Introduced OpenRouteService & Google Maps integration
- Improved shortcode flexibility
- Added settings for default MPG and fuel cost
- Minor UI and performance enhancements
v1.0.0 — Initial Release
- Manual input form
- Real-time cost calculation
- Gutenberg block support